src/test/ui/cfg/cfg-macros-foo.rs

   1 // run-pass
   2 // compile-flags: --cfg foo
   3
   4 // check that cfg correctly chooses between the macro impls (see also
   5 // cfg-macros-notfoo.rs)
   6
   7
   8 #[cfg(foo)]
   9 #[macro_use]
  10 mod foo {
  11     macro_rules! bar {
  12         () => { true }
  13     }
  14 }
  15
  16 #[cfg(not(foo))]
  17 #[macro_use]
  18 mod foo {
  19     macro_rules! bar {
  20         () => { false }
  21     }
  22 }
  23
  24 pub fn main() {
  25     assert!(bar!())
  26 }